US Patent 9994284 Bicycle assist unit
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Patent abstract
A bicycle assist unit is basically provided with a transmission and an assist motor. The transmission is configured to receive rotation of a crankshaft. The transmission includes a planetary gear mechanism. The planetary gear mechanism includes an output unit, a plurality of ring gears and a rotation restricting mechanism that selectively restricts rotation of the ring gears. The assist motor is configured to output a second drive force that is added to a first drive force that is outputted from the transmission on a power transmission path between the output unit and a front sprocket that is attached to the crankshaft.
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Patent Inventor Names
Hioryuki Urabe0
Takashi Yamamoto0
Tetsuya Hino0
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US Patent 09994284 Bicycle assist unit US Patent 9994284 Bicycle assist unit
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Patent Number
09994284
Patent Number
9994284
Edits on 20 Jan, 2022
Golden AI
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US Patent 09994284 Bicycle assist unit
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Is a
Patent jurisdiction
Patent number
09994284
Date of patent
June 12, 2018
Patent application number
14871679
Date Filed
September 30, 2015
Patent primary examiner
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